Ventilator



' G. C. BREIDERT.

VENTILATOR.

, APPLICATION FILED APR. 19,, 1918. 1,362,982. Patented Dec. 21,1920. I 2 SHEETS-SHEET I.

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VENTILATOR.

APPLICATION FILED APR. 19, 191 8.

Patented Dec. 21, 1920.

2 SHEETS-SHEET 2.

ill/ III I ATENT OFFICE.

GEORGE C. BBEIDEBT, OF CHECAGO, ILLINOIS, ASSIGNOR T0 AUTO UTILITIES MANU- .FACT'URING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

VENTILATOR.

Original application filed April 23, 1913, Serial No. 763,047.

Eivided and this application filed April 19, 1918.

Serial No. 847,201.

T 0 all whom 2'25 may concern Be it known that I, Gnonon C. BREIDERT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ventilators, of which the following is a specification.

My invention relates to a ventilator for use in connection with a railway car,tram car, or other vehicle, and more particularly to a car ventilator of the type which operates on the principle of disposing an air collecting surface or surfaces normal to the direction of movement of the car upon which air impinges when the car is in motion so as to create a draft across a ventilating orifice or orifices, the draft operating to draw the foul air from the car through the ventilator.

One of the objects of the invention is to provide a suitable form of valve for closing the ventilating passageway through the device so as to prevent wind from blowing into the car when the car is in motion, for example, or for restricting such passageway when conditions make this desirable.

A further object of the invention is to provide a peculiar configuration for the air impinging or collecting surface or surfaces whereby the wasting of the air over the edges not adjacent to the ventilating opening or openings is prevented so that the draft over such openings is increased to the fullest extent possible for any given speed of the car.

A further object is to provide certain novel arrangements at the open sides of the ventilator which serve to prevent air, dust, cinders, and the like, from entering the car when the wind is in such direction as to create that danger, and when the valve, if a valve is used, is open.

T he invention consists in the new and improved constructions, arrangements and devices for carrying out the above stated objects and such other incidental objects as will appear from the following description of a preferred embodiment of my invention.

This application is a division of my copending application Serial No. 847,201, filed June 25, 1914, which was a division of application Serial Nov 763,047, filed April 23, 1913, on which was granted Patent No. 1,104,472, dated July 21, 1914.

The preferred embodiment of the inven- Specificaticn of Letters Patent.

Divided and application filed June 25, 1914,

Serial No. 229,561.

tion is illustrated in the accompanying drawings, wherein Figure 1 is a view, in perspective, of two of the ventilators shown as installed on the roof of a car.

Fig. 2 is a vertical sectional view taken on line 2-2 of Fig. 1, illustrating the construction of the ventilator adjacent one of 1ts ventilating passageways.

1 1g. 3 is a vertical sectional view through the device and adjacent portions of the car roof, this section being taken on a plane extending longitudinally of the car, and I Figg. 4 is a sectional plan on line 4-4 of Like characters of reference designate like parts in the several figures of the drawings.

The ventilator may be arranged in any suitable place on the exterior of the car but the preferred position is the roof of the car; and in claiming the ventilator as in combination with the wall of the car it should be understood that the term wall is intended to include the roof as well as the sides or clearstory of the car. When arranged in the preferred position shown in the draw: ings, the car roof, desi nated 10, is formed with an opening 11. Kround this opening is fastened a base member 12 which, if the car roof is sloping, is shaped so that the ventilator will be supported in substantially upright position. The ventilator consists of a box-like structure mounted on the base 12 and comprises an imperforate top member 13, a bottom member 14, having an opening 15 alining with the opening through the base member, and a pair of imperforate air collecting or impinging faces 16, 16, arranged substantially normal to the line of movement of the car, the other two sides of the structure being open for the discharge of air evacuated from the interior of the car.

Arranged within the structure above described, and transversely thereof, is a hollow structure 17, the end walls 18 of which preferably aline with the vertical edges of the air collecting faces 16, the side walls 19 of this structure being formed with openings 20 facing the air collecting members 16 and being preferably formed with curved outstanding fianges 21 at opposite sides of these openings. The openings do not extend down to the bottom plate 14 of the ventilator. An outstanding angle strip 22 is secured to the lower edge of the curved flanges 21 and to the parts 23 of the structure which are be low the openings 20. This construction is designed to prevent water from entering the car through the ventilator.

Arranged centrally within the hollow structure 17 is a valve consisting of curved valve members 24, 24 connected to a shaft 25 by arms 26. The shaft is revolubly supported in a bearing block 27 fastened to the under side of the top plate 13 of the ventilator and in a bearing 28 provided by a spider 29 secured to the hollow structure 17. The shaft extends down through the opening in the roof of the car and. is provided with a hand piece 30. The valve members 24L may occupy the position shown in Fig. 3, in which case the ventilator will be operative, or the valve may be turned so that the members 24 will close openings 20, which may be desirable when the car is standing still in order that air may be prevented from blowing into the car through the ventilator. It may be desirable, under certain conditions, to move the valve to an intermediate position, in which it would partially close openings 20.

In order to give the ventilator maximum eiiiciency by increasing the draft over the open sides of the ventilator to the fullest extent practicable, I prefer to form the air collecting faces with projections 31 along their horizontal edges. These projections, which may be formed by depressing the central portions of the plates, as shown, tend to prevent the air collected on the plates from spilling over the upper and lower edges of the ventilator. In order to prevent air, dust, cinders and the like, from blow ing into the car through the ventilator, when the wind is in the direction to make this possible, and the valve is open, I prefer to arrange groups of louvers 32, 33, 3st, in the openings between the ends of the hollow structure 17 and the air collecting plates 16. These louvers are of different widths, the widest being those adjacent the air collecting faces. The objcet of this is to check a diagonal wind as much as possible without obstructing the outflow of foul air from the car more than. necessary.

' Operation: hen the car is in motion air impinges upon one or other of the air collecting faces 16 according to the direction in which the car is moving. The air is forced over the vertical edges of the air collecting faces and by passing across the open sides of the ventilator creates a suction within the ventilator which evacuates the foul air from the car, provided, of course,

the valve members 24 are in their open position, as shown in Fig. 3. By turning the valr e to close openings 20, which may be done by manipulation of shaft 25, the ventilator is put out of operation; or, if desired and conditions require it, the valve may be turned to an intermediate position in which the openings 20 are partly closed.

I claim:

1. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with an air impinging face arranged substantially normal to the direction of movement of the car and having an open side at one edge of said air impinging face, and means providing a discharge passageway communicating with the opening in the car wall; and a valve to control the evacuation of the car atmosphere through said opening and passageway.

2. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure-provided with oppositely disposed air impinging faces substantially'normal to the direction of movement of the car and having open sides between said surfaces and means providing a centrally arranged discharge passageway communicating with the opening in the car wall; and a valve to control the evacuation of the car atmosphere throughsaid opening and passageway.

3. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure arranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facing said air collecting plates, and means for closing said last named openings.

at. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure ar ranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facing said air collecting plates, and a valve revoluble within said hollow structure and comprising oppositely arranged curved members adapted to close said last named openings.

ing said air collecting plates, and a valve revoluble within said hollow structure and comprising oppositely arranged curved members adapted to close the openings in said hollow structure and a rod extending into the car through the opening in the wall thereof to which said members are secured.

6. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure arranged between said plates providing a pas sageway communicating with the opening in the car wall and formed with openings facing said air collecting plates; and louvers arranged in the spaces between the outer ends of said hollow structure and said air collecting plates.

7. In combination with a 0211" having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure arranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facing said air collecting plates; and louvers arranged in the spaces between the outer ends of said hollow structure and said air collecting plates which are parallel to the latter.

8. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure ar ranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facing said air collecting plates;'and louvers arranged in the spaces between the outer ends of said hollow structure and said air collecting plates which are parallel to the latter and are of different widths with the wider ones near the air collecting plates.

9. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure arranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facsaid air collecting plates, and louvers arranged. in the spaces between the outer ends of said hollow structure and said air collecting plates.

10. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; and a hollow structure arranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facing said air collecting plates, and with projecting flanges at opposite sides of said opening.

11. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with oppositely disposed air collecting plates substantially normal to the direction of movement of the car and having open sides between said plates; a hollow structure ar ranged between said plates providing a passageway communicating with the opening in the car wall and formed with openings facing said air collecting plates and with curved, outwardly projecting flanges at opposite sides of said openings; and a revo1uble valve within said hollow structure comprising curved oppositely disposed members adapted to close the aforesaid openings in said hollow structure.

12. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with an air collecting face arranged substantially normal to the direction of movement of the car and having an open side at one edge of said air collecting face, and a dis charge passageway communicating with the opening in the car wall, said air collecting face being formed at its edges transverse to the edge lying along the open side of the ventilator with outstanding ribs, for the purpose described.

13. In combination with a car having an opening in the wall thereof; of a ventilator comprising a box-like structure provided with an air collecting face arranged substantially normal to the direction of movement of the car and having an open side at one edge of said air collecting face, and a discharge passageway communicating with the opening 1n the car wall; and a valve to con trol the evacuation of the car atmosphere through said opening and passageway, said air "collecting face being formed with a fiat, central depression providing ribs at its edges transverse to the edge lying along the open side of the ventilator, for the purpose described.

14. In combination with a car having an opening in the wall thereof, of a ventilator comprising a box-like structure provided with a flat air collecting face substantially normal to the direction of movement of the car and having an open side at one edge of said air collecting face, and a discharge passageway communicating with the opening in the car well, said air collecting face being formed at the edges transverse to the edge lying along the open side of the ventilator with outstanding ribs, for the purpose described.

15. In combination with a car having an opening in the Wall thereof, of a ventilator comprising an imperforate top plate,a bottom plate having an opening communicating with said opening in the car wall,

oppositely disposed, substantially vertical air collecting plates normal to the direction of movement of the car and spaced apart to provide open sides between them; a hollow structure within said box-like structure having imperforate end walls alined with the vertical edges of said air collecting plates, and side walls substantially parallel with the air collecting plates formed with openings, a revoluble valve arranged in said hollow structure for closing said last named openings, and louvers between said hollow structure and air collecting plates.

GEORGE C. BREIDERT. 

